diff --git a/src/Base/MatrixPyImp.cpp b/src/Base/MatrixPyImp.cpp
index b4f37b89a..a5408bb18 100644
--- a/src/Base/MatrixPyImp.cpp
+++ b/src/Base/MatrixPyImp.cpp
@@ -159,8 +159,9 @@ PyObject* MatrixPy::richCompare(PyObject *v, PyObject *w, int op)
         }
     }
     else {
-        PyErr_SetString(PyExc_TypeError, "Cannot compare Matrix with other type");
-        return 0;
+        // This always returns False
+        Py_INCREF(Py_NotImplemented);
+        return Py_NotImplemented;
     }
 }
 
diff --git a/src/Base/VectorPyImp.cpp b/src/Base/VectorPyImp.cpp
index 3476ac06a..da2bb5831 100644
--- a/src/Base/VectorPyImp.cpp
+++ b/src/Base/VectorPyImp.cpp
@@ -237,8 +237,9 @@ PyObject* VectorPy::richCompare(PyObject *v, PyObject *w, int op)
         }
     }
     else {
-        PyErr_SetString(PyExc_TypeError, "Cannot compare Matrix with other type");
-        return 0;
+        // This always returns False
+        Py_INCREF(Py_NotImplemented);
+        return Py_NotImplemented;
     }
 }